... use valve for choice Item Code: JC1109-2Item Name: Medical Aluminum Alloy Oxygen CylinderDescriptions:1) water capacity: 0.28L, 0.7L, 1L ... , 1.7L, 2L, 2.5L, 2.7L, 3.2L, 4L, 6L ... , 8L, 10L, 15L, etc; 2) diameter: 59-203mm;3) height: 194-725mm;4) weight: 0.4-14kgs;5) service ...